there should be an option to choose if you want a 500-500 game or a 750-750 or possibly even a 1000-1000. I like getting full builds, and I tend to only get 3 late game items, or 6 mid game ones.

Hmm.... I think Riots plan was to make short games... so i HIGHLY doubt that they would add such an option Tho it would probably be cool... Also... maybe try killing a few more people? 20+ gives you a lot of items